3-setup-world.sh: Add @world update

scripts/3-setup-gentoo.sh

@@ -4,7 +4,7 @@ set -e
 mkdir --parents /etc/portage/repos.conf
 cp /usr/share/portage/config/repos.conf /etc/portage/repos.conf/gentoo.conf
 emerge-webrsync 
-
+emerge -v --update --deep @world
 export USE="X jpeg png icu -accessibility -debug -dbus cairo"
 emerge -v qtcore qtgui uchardet
 emerge -v qtwidgets qtsql qtnetwork qtconcurrent